3/8" Hex Drivers | McMaster-Carr

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Drive Style

Drilled Spanner

External 12-Point

External Spline

External Square

Tamper-Resistant Hex

Tamper-Resistant Torx

System of Measurement

Drive Size

Sold As

Tip Style

Overall Length

15/16" to 1 1/8"

1 1/4" to 1 3/8"

1 5/16" to 4 11/16"

1 5/16" to 6 15/16"

Driver Style

Square Drive Size

Shank Type

Knurled-End Hex

Quick-Change Hex

Number of Pieces

Socket Style

Container Type

Compartmented Metal Box

Compartmented Plastic Box

Fabric Roll-Up Pouch

Metal Clip Rail

Plastic Clip Rail

Plastic Organizer

Grip Style

Socket Shape

Bolt Clearance Type

Finish

Phosphate Coated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Nitride (TiN) Coated

Material

Aluminum Bronze

Beryllium Copper

Stainless Steel

Fastener-Holding Mechanism

Spring-Loaded Ball

Socket Type

Hex Shank Size

Drive Type

Color

REACH

RoHS

Export Control Classification Number (ECCN)

DFARS Specialty Metals

How can we improve?

456 Products

Fastening and Joining

Nut Starters

Begin turning nuts in hard-to-reach spots

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Nutdriver Bits

Pair with nutdrivers to turn hex nuts and cap screws

Screwdrivers

Tighten and loosen screws

L-Keys

Turn fasteners from either end and reach into tight spots

Nutdrivers

Tighten and loosen nuts and bolts

T-Handle Keys

To turn fasteners in hard-to-reach spots, there's a long shaft and a grip for your whole hand

Screwdriver/Nutdrivers

Screwdriver/Nutdrivers

Quickly switch between driving screws and driving nuts

Driver Shafts

Attach to a handle to create your own driver tool, or pair with socket wrenches and power tools

Bit Sockets

Turn fasteners with an internal drive style without slipping and damaging the drive

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

Ratchet Wrenches

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

Wrench Heads

Attach to your ratchet wrench and socket extension to turn fasteners where clearance is limited

Combination Wrenches

Combination Wrenches

Use the open end when tightening in cramped spaces and the box end when you need extra grip

Socket Bits

Switch out worn or damaged bits instead of replacing your entire bit socket

Box Wrenches

Grip all sides of a fastener to prevent slipping

Open-End Wrenches

Open-End Wrenches

Tighten and loosen fasteners from the top or the side

Socket Wrenches

Socket Wrenches

Apply torque to turn nuts, bolts, and other fasteners without rounding the heads

Torque Wrenches

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)